Installation system of trunk lid

Abstract

A mounting system for a trunk lid includes: a lateral frame disposed on a compartment wall, a cover detachably attached to the lateral frame; the sliding rail frame is located on the inner side of the compartment wall; the connecting plate comprises a first connecting part, a second connecting part and a third connecting part, the first connecting part is connected to the lateral frame through a first fastener, the second connecting part is connected to the carriage wall through a second fastener, and the third connecting part is connected to the sliding rail frame through a third fastener; the first fastening piece is arranged in the vertical direction, and the second fastening piece and the third fastening piece are arranged in the horizontal direction. The lateral frame is connected with the carriage wall through the connecting plate and the fasteners, the connecting plate can provide double-connection acting force in the vertical direction and the horizontal direction, bumping caused by vehicle running is effectively resisted, and it is guaranteed that the lateral frame is continuously and stably connected with the carriage wall.

Description

Technical Field

[0001] The utility model relates to an installation system for a trunk lid. Background Art

[0002] Traditionally, truck bed cover systems are commonly used to protect the cargo bed of pickup trucks. The cover system generally covers all or part of the truck bed, thereby protecting any items stored and / or hauled in the cargo bed from external factors and theft. To accommodate the storage and / or hauling of larger objects and facilitate the loading and unloading of the cargo bed, many traditional cover systems are foldable to a storage position. This allows the cargo bed to be exposed without completely removing the lid from the truck. However, when multiple cover panels and / or hinges are connected, seams are typically formed, allowing water and other liquids to easily pass through and reach any cargo inside the truck bed. Therefore, more robust and scalable solutions are needed for implementing methods, systems, and devices for implementing a bed cover system.

[0003] Example of the prior art 1, referring to the patent document CN213199429U, discloses a frame fixing structure for connecting a bed cover, including a bed cover and a first frame located at the lower end of the bed cover. It also includes a connecting component and a fixing member. The connecting component is located at the lower end of the bed cover. There is a hollow groove inside the bed cover. The fixing member is located in the hollow groove. The connecting component passes through the lower end face of the bed cover and is connected to the fixing member, thereby fixing the bed cover on the first frame. Example of the prior art 2, referring to the patent document CN213199431U, discloses a split waterproof fixing frame for a bed cover, including a frame body. The frame body is fixed inside the side plate of the cargo bed. The frame body includes an installation surface. A support member made of a flexible sealing material is provided on the installation surface. The upper end of the support member abuts against the bed cover. The abutting point of the support member and the bed cover is higher than the installation surface. A stop surface is also provided on the side of the installation surface away from the support member.

[0004] In summary, it can be inferred that in the prior art, the cargo bed wall and the lateral frame are both connected and fixed by pressing plates, which have certain defects. For example: 1. The pressing plate is located below the cargo bed wall and the lateral frame and is installed from bottom to top to clamp the cargo bed wall and the lateral frame inside. In this type of structure, the acting force of the pressing plate is unidirectional (horizontal direction), but the bumping force during vehicle driving is multi-directional. Therefore, the unidirectional acting force has obvious drawbacks and is prone to clamping loosening; 2. In some vehicles, the structure of the cargo bed wall is relatively special. For example, a slide rail frame is configured on the cargo bed wall, and the slide rail frame occupies a certain space, which will conflict with the installation space of the pressing plate in the prior art, resulting in the pressing plate being unable to be used normally. Summary of the Invention

[0005] In order to overcome the above deficiencies of the prior art, the present utility model provides an installation system for a trunk lid.

[0006] The technical solution of the present utility model for solving its technical problems is: an installation system for a trunk lid, comprising:

[0007] A lateral frame, configured on the vehicle compartment wall, and a cover is detachably attached to the lateral frame;

[0008] A slide rail frame, located inside the vehicle compartment wall;

[0009] A connecting plate, including a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion is connected to the lateral frame through a first fastener, the second connecting portion is connected to the vehicle compartment wall through a second fastener, and the third connecting portion is connected to the slide rail frame through a third fastener;

[0010] The first fastener is arranged in the vertical direction, and the second fastener and the third fastener are both arranged in the horizontal direction.

[0011] Regarding the specific composition of the lateral frame: the lateral frame includes a horizontal crimping portion, a vertical fixing portion, and a positioning portion arranged from outside to inside;

[0012] The horizontal crimping portion abuts against the upper end surface of the vehicle compartment wall;

[0013] The vertical fixing portion fits against the inner side surface of the vehicle compartment wall;

[0014] The positioning portion has a positioning groove, and the connecting plate has a positioning rib, and the positioning rib is inserted into the positioning groove.

[0015] Further, a first through hole is provided on the first connecting portion, a first fixing hole is provided on the vertical fixing portion, and the first fastener passes through the first through hole and extends into the first fixing hole;

[0016] A second through hole is provided on the second connecting portion, a second fixing hole is provided on the inner side surface of the vehicle compartment wall, and the second fastener passes through the second through hole and extends into the second fixing hole;

[0017] The slide rail frame is provided with a third through hole, a third fixing hole is provided on the third connecting portion, and the third fastener passes through the third through hole and extends into the third fixing hole;

[0018] An expansion sleeve is provided in the first fixing hole, and the first fastener extends into the expansion sleeve and causes the expansion sleeve to abut against the inner wall of the first fixing hole.

[0019] An alternative embodiment of the connecting plate is that the connecting plate further has a supporting portion, the supporting portion is located at the lower end of the lateral frame, and the supporting portion has a fourth through hole, and the first fastener passes through the first through hole and the fourth through hole in sequence and then enters the first fixing hole.

[0020] Preferably, the expansion sleeve has a flange, the flange is located outside the first fixing hole, and the upper end surface of the flange abuts against the lower end surface of the vertical fixing portion, and the lower end surface of the flange abuts against the upper end surface of the supporting portion.

[0021] Preferably, both the second connecting portion and the third connecting portion are distributed vertically, and there is a first horizontal transition portion between the second connecting portion and the third connecting portion so that the vertical positions of the second connecting portion and the third connecting portion are staggered.

[0022] An alternative embodiment of the connecting plate is that the second connecting portion is located outside the third connecting portion, so that an inner space is formed inside the second connecting portion and an outer space is formed outside the third connecting portion;

[0023] The head of the second fastener is located in the inner space;

[0024] The tail of the third fastener is located in the outer space.

[0025] An alternative embodiment of the connecting plate is that there is a second horizontal transition portion between the first connecting portion and the second connecting portion so that the vertical positions of the first connecting portion and the second connecting portion are staggered, and the length of the second horizontal transition portion is greater than the length of the first horizontal transition portion.

[0026] An alternative embodiment of the lateral frame is that the lateral frame further includes a drainage portion, and the drainage portion is located inside the positioning portion;

[0027] The upper end surface of the drainage portion has a water guiding groove, and the end of the drainage portion has a water discharging hole, and the water discharging hole is communicated with the water guiding groove;

[0028] The lower end of the drainage portion has a cover connecting portion, and the cover connecting portion forms a detachable connection and cooperation with the cover through an external fixture.

[0029] An alternative embodiment of the lateral frame is that a raised sealing portion is provided on the drainage portion, the sealing portion is located inside the water guiding groove, and a first sealing strip is embedded in the sealing portion.

[0030] The beneficial effects of the present utility model are as follows:

[0031] 1. A connecting plate and multiple fasteners are adopted to replace the existing pressing plate structure for connecting the side frame to the car body wall. Specifically, the connecting plate is fixedly connected to the side frame in the vertical direction through the first fastener, and the connecting plate is fixedly connected to the car body wall in the horizontal direction through the second fastener. That is, the car body wall is connected and fixed to the side frame through the connecting plate, and the connecting plate can provide double connecting forces in the vertical and horizontal directions, effectively resisting the bumps during vehicle driving and ensuring the continuous and stable connection between the side frame and the car body wall.

[0032] 2. In the original structure of the vehicle, the slide rail frame is directly connected to the car body wall through the third fastener. The present utility model borrows the structural design of the connecting plate and indirectly connects the slide rail frame to the car body wall through the third fastener and the connecting plate. Specifically, first, the third fastener and the slide rail frame are detached from the car body wall, then the connecting plate is respectively assembled and connected to the side frame and the car body wall, and then the slide rail frame is fixed to the connecting plate by using the third fastener. Since the connecting plate has been fixedly connected to the car body wall through the second fastener, the slide rail frame is indirectly connected and fixed to the car body wall through the connecting plate as a connecting transition piece.

[0033] 3. In a special type of vehicle, the structure of the car body wall is relatively unique. Specifically, the end of the car body wall has a necked-in section protruding inward, and the necked-in section needs to occupy a part of the space. In this embodiment, in order to adapt to the necked-in section, an avoidance section is recessed inward at the outer side surface (preferably the vertical fixing part) of the side frame, and the necked-in section can enter the avoidance section, and the two can also play a positioning role after abutting against each other. Description of the Drawings

[0034] Figure 1 is the schematic assembly structure diagram of the present utility model.

[0035] Figure 2 is the combined schematic diagram of the cover and the car body wall.

[0036] Figure 3 is the exploded schematic structure diagram of the present utility model.

[0037] Figure 4 is the partial structure schematic diagram of the car body wall in the prior art.

[0038] Figure 5 is the enlarged schematic diagram of the partial assembly structure in the present utility model.

[0039] Figure 6 is the assembly schematic diagram of each fastener in the present utility model.

[0040] Figure 7 is the disassembly schematic diagram of each fastener in the present utility model.

[0041] Figure 8 It is a combined schematic diagram of the installation system and the cover.

[0042] Figure 9 It is a schematic structural diagram of the connecting plate in the present utility model.

[0043] Figure 10 It is a schematic structural diagram of the side frame in the present utility model from the upper side view.

[0044] Figure 11 It is a schematic structural diagram of the side frame in the present utility model from the lower side view.

[0045] In the figure: 1. Side frame; 11. Horizontal crimping part; 12. Vertical fixing part; 121. First fixing hole; 13. Positioning part; 131. Positioning groove; 14. Drainage part; 141. Water guiding groove; 142. Drain hole; 15. Cover connecting part; 16. Sealing part; 17. Avoidance section; 2. Carriage wall; 21. Upper end face of the carriage wall; 22. Inner side face of the carriage wall; 221. Second fixing hole; 23. Necking section; 3. Cover; 4. Slide rail frame; 41. Third through hole; 5. Connecting plate; 51. First connecting part; 511. First through hole; 512. Second horizontal transition part; 52. Second connecting part; 521. Second through hole; 523. First horizontal transition part; 523a. Inner space; 523b. Outer space; 53. Third connecting part; 531. Third fixing hole; 54. Positioning rib; 55. Support part; 551. Fourth through hole; 61. First fastener; 62. Second fastener; 63. Third fastener; 64. Expansion sleeve; 641. Flange; 7. External fixture; 8. Second sealing strip; 9. First sealing strip. Detailed implementation manners

[0046] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific elaborations of the present utility model, and their purpose is to enable those skilled in the art to better understand the technical solutions of the present utility model, and should not be regarded as a limitation of the present utility model.

[0047] In the description of the present utility model, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", and "attachment" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0049] Embodiment 1

[0050] Referring to Figures 1 to 11 , an installation system for a trunk lid, comprising: a lateral frame 1, configured on the vehicle compartment wall 2, and a cover 3 detachably attached to the lateral frame 1; a slide rail frame 4, located inside the vehicle compartment wall 2; a connecting plate 5, including a first connecting portion 51, a second connecting portion 52, and a third connecting portion 53. The first connecting portion 51 is connected to the lateral frame 1 through a first fastener 61, the second connecting portion 52 is connected to the vehicle compartment wall 2 through a second fastener 62, and the third connecting portion 53 is connected to the slide rail frame 4 through a third fastener 63; the first fastener 61 is configured in the vertical direction, and the second fastener 62 and the third fastener 63 are both configured in the horizontal direction.

[0051] The above content is the basic structural solution of the present utility model. It uses the connecting plate 5 and multiple fasteners to replace the existing pressing plate structure to connect the lateral frame 1 and the vehicle compartment wall 2. Specifically, the connecting plate 5 is fixedly connected to the lateral frame 1 in the vertical direction through the first fastener 61, and the connecting plate 5 is fixedly connected to the vehicle compartment wall 2 in the horizontal direction through the second fastener 62. That is, the vehicle compartment wall 2 is connected and fixed to the lateral frame 1 through the connecting plate 5, and the connecting plate 5 can provide double connection forces in the vertical and horizontal directions, effectively resisting the bumps during vehicle driving and ensuring the continuous and stable connection between the lateral frame 1 and the vehicle compartment wall 2.

[0052] It should be particularly noted that referring to Figure 4 , in the original structure of the vehicle, the slide rail frame 4 is directly connected to the vehicle compartment wall 2 through the third fastener 63. The present utility model borrows the structural design of the connecting plate 5 and indirectly connects the slide rail frame 4 to the vehicle compartment wall 2 through the third fastener 63 and the connecting plate 5. Specifically, referring to Figures 6 to 7, first remove the third fastener 63 and the slide rail frame 4 from the carriage wall 2, then assemble and connect the connecting plate 5 to the lateral frame 1 and the carriage wall 2 respectively, and then use the third fastener 63 to fix the slide rail frame 4 to the connecting plate 5. Since the connecting plate 5 is already fixedly connected to the carriage wall 2 through the second fastener 62, the slide rail frame 4 is indirectly connected and fixed to the carriage wall 2 through the connecting plate 5 as a connecting transition piece.

[0053] Preferably, referring to Figure 6 , both the second connecting portion 52 and the third connecting portion 53 are vertically distributed, and there is a first horizontal transition portion 523 between the second connecting portion 52 and the third connecting portion 53, so that the vertical positions of the second connecting portion 52 and the third connecting portion 53 are staggered. Specifically, the second connecting portion 52 is located outside the third connecting portion 53, so that an inner space 523a is formed inside the second connecting portion 52, and an outer space 523b is formed outside the third connecting portion 53; the existence of the inner space 523a and the outer space 523b can eliminate structural interference and provide sufficient installation space for the corresponding fasteners, that is, the head of the second fastener 62 is located in the inner space 523a, and the tail of the third fastener 63 is located in the outer space 523b.

[0054] Regarding the alternative embodiment of the connecting plate 5, referring to Figure 5 , there is a second horizontal transition portion 512 between the first connecting portion 51 and the second connecting portion 52, so that the vertical positions of the first connecting portion 51 and the second connecting portion 52 are staggered, and the length of the second horizontal transition portion 512 is greater than the length of the first horizontal transition portion 523. The second horizontal transition portion 512 can provide enough horizontal space to adapt to the installation requirements of the lateral frame 1 and the carriage wall 2 for the horizontal space.

[0055] Embodiment Two

[0056] In this embodiment, a preferred structural solution for the lateral frame 1 is provided. Referring to Figures 5 to 11 , its specific composition is: the lateral frame 1 mainly includes a horizontal crimping portion 11, a vertical fixing portion 12 and a positioning portion 13 arranged from outside to inside.

[0057] Among them, the horizontal crimping portion 11 abuts against the upper end surface 21 of the carriage wall, and the carriage wall 2 can provide an upward supporting force to the lateral frame 1 through the horizontal crimping portion 11 to prevent the lateral frame 1 from falling.

[0058] The vertical fixing portion 12 is attached to the inner side surface 22 of the carriage wall, and the carriage wall 2 can provide a lateral limiting function to the lateral frame 1 through the vertical fixing portion 12 to prevent the lateral frame 1 from moving outwards.

[0059] The positioning portion 13 has a positioning groove 131, and the connecting plate 5 has a positioning rib 54. The positioning rib 54 is inserted into the positioning groove 131 to provide a good positioning effect, enabling the connecting plate 5 to be pre-positioned at the lower end of the side frame 1 and facilitating the subsequent assembly of the first fastener 61 and the second fastener 62. Preferably, the cross-section of the positioning groove 131 is a right triangle, and the shape of the positioning rib 54 is adapted to the positioning groove 131. First, it can make the contact area between the two larger. Second, it can provide a non-unidirectional positioning direction, thereby making the positioning effect better.

[0060] Based on the composition structure of the side frame 1 in this embodiment, referring to Figures 6 to 7 , the usage structures of each fastener are as follows:

[0061] First fastener 61: A first through hole 511 is provided on the first connecting portion 51, and a first fixing hole 121 is provided on the vertical fixing portion 12. The first fastener 61 passes through the first through hole 511 and extends into the first fixing hole 121. More preferably, an expansion sleeve 64 is provided in the first fixing hole 121, and the first fastener 61 extends into the expansion sleeve 64 and makes the expansion sleeve 64 abut against the inner wall of the first fixing hole 121. Through the setting of the expansion sleeve 64, first, it can eliminate the fitting gap and resist the acting force of vehicle bumps, making the first fastener 61 fit more continuously and tightly with the first fixing hole 121. Second, the first fastener 61 and the side frame 1 are generally metal parts, and direct cooperation between the two is prone to wear. By using the expansion sleeve 64 (generally made of plastic or plastic material) as an intermediate transition part, it can prevent the first fastener 61 from directly contacting the side frame 1, providing good protection, preventing the first fastener 61 and the side frame 1 from wearing each other, and improving the service life.

[0062] Second fastener 62: A second through hole 521 is provided on the second connecting portion 52, and a second fixing hole 221 is provided on the inner side surface 22 of the carriage wall. The second fastener 62 passes through the second through hole 521 and extends into the second fixing hole 221.

[0063] Third fastener 63: A third through hole 41 is provided on the slide rail frame 4, and a third fixing hole 531 is provided on the third connecting portion 53. The third fastener 63 passes through the third through hole 41 and extends into the third fixing hole 531.

[0064] Embodiment Three

[0065] Based on the structure of any of the foregoing embodiments, an optional structural solution for the connecting plate 5 is: Refer to Figure 6, the connecting plate 5 further has a supporting portion 55, and the supporting portion 55 is located at the lower end of the lateral frame 1 to provide an upward supporting force to the lateral frame 1. For the disassembly and assembly of the first fastener 61, the supporting portion 55 has a fourth through hole 551, and the first fastener 61 passes through the first through hole 511 and the fourth through hole 551 in sequence and then enters the first fixing hole 121.

[0066] More preferably, the expansion sleeve 64 has a flange 641. The flange 641 is located outside the first fixing hole 121, and the upper end surface of the flange 641 abuts against the lower end surface of the vertical fixing portion 12, and the lower end surface of the flange 641 abuts against the upper end surface of the supporting portion 55. First, the flange 641 serves as a transition structural member, and the supporting portion 55 indirectly provides an upward supporting force to the lateral frame 1; second, the flange 641 is exposed outside the first fixing, which is more convenient for the disassembly and assembly of the expansion sleeve 64.

[0067] Embodiment 4

[0068] Based on the structure of any of the foregoing embodiments, the preferred structural solutions for drainage and sealing are as follows:

[0069] Drainage structure: Refer to Figure 5 , the lateral frame 1 further includes a drainage portion 14, and the drainage portion 14 is located inside the positioning portion 13; the upper end surface of the drainage portion 14 has a water guiding groove 141, and the end of the drainage portion 14 has a water outlet hole 142, and the water outlet hole 142 is communicated with the water guiding groove 141. When rainwater enters the drainage portion 14, the rainwater first converges into the water guiding groove 141 with a lower terrain and flows along the water guiding groove 141 to the water outlet hole 142, and finally is discharged outside the lateral frame 1 through the water outlet hole 142, playing an effective drainage role. Preferably, the drainage portion 14 is inclined, that is, the terrain of the drainage portion 14 is lower closer to the water outlet hole 142, so that the rainwater automatically flows to the water outlet hole 142 under the action of gravity, playing a good guiding function.

[0070] Preferably, refer to Figures 8 to 11 , the lower end of the drainage portion 14 has a cover 3 connecting portion 15, and the cover 3 connecting portion 15 forms a detachable connection and cooperation with the cover 3 through an external fixture 7 to provide an installation structure and realize the connection between the lateral frame 1 and the cover 3. The cover 3 can shield the open space of the carriage to provide protection for the items in the carriage.

[0071] Outer sealing structure: Refer to Figure 8 , a second sealing strip 8 is clamped between the lower end surface of the horizontal crimping portion 11 and the upper end surface 21 of the carriage wall. Under the action of gravity, the lateral frame 1 presses the second sealing strip 8 against the carriage wall 2, thereby eliminating the fitting gap between the lateral frame 1 and the carriage wall 2 and providing an outer sealing effect.

[0072] Inner sealing structure: Refer to Figure 8 , a raised sealing portion 16 is provided on the drainage portion 14. The sealing portion 16 is located inside the water guiding groove 141, and the high terrain of the sealing portion 16 can play a certain role in blocking water. Moreover, a first sealing strip 9 is embedded in the sealing portion 16 to further improve the sealing performance of the sealing portion 16. After assembling the upper cover 3, under the action of gravity, the upper cover 3 presses the first sealing strip 9 against the sealing portion 16 of the side frame 1, thereby eliminating the fitting gap between the side frame 1 and the upper cover 3 and providing an inner sealing effect.

[0073] It should be noted that the outer sealing structure is the first waterproof and sealing protection structure. If the first waterproof and sealing protection structure (outer sealing structure) is breached by rainwater, the rainwater enters the drainage portion 14, flows along the water guiding groove 141 to the drain hole 142 and is discharged, forming a second waterproof and sealing structure. The inner sealing structure is the third waterproof and sealing protection structure. If the second waterproof and sealing protection structure (drainage structure) is breached by rainwater, the inner sealing structure plays a role in blocking water and can still prevent rainwater from entering the interior of the carriage. Therefore, with the cooperation of the waterproof and sealing protection structures, excellent waterproof and sealing performance can be provided.

[0074] Embodiment Five

[0075] In a special type of vehicle, refer to Figure 4 , the structure of the carriage wall 2 is relatively unique. Mainly, the end of the carriage wall 2 has a constricted section 23 that protrudes inward, and the constricted section 23 needs to occupy a part of the space. In this embodiment, refer to Figure 10 , Figure 11 , in order to adapt to the constricted section 23, an avoidance section 17 is recessed inward at the outer side surface (preferably the vertical fixing portion 12) of the side frame 1. The constricted section 23 can enter the avoidance section 17, and the two can also play a positioning role after abutting against each other.

[0076] It is worth noting that other technical solutions of the present invention belong to the prior art, so they will not be elaborated here.

[0077] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A trunk lid installation system, characterized in that: Included are: A lateral frame (1) is arranged on a compartment wall (2), and a cover (3) is detachably attached to the lateral frame (1); A slide rail frame (4) is located on the inner side of the carriage wall (2); The connecting plate (5) comprises a first connecting portion (51), a second connecting portion (52) and a third connecting portion (53), wherein the first connecting portion (51) is connected to the lateral frame (1) via a first fastener (61), the second connecting portion (52) is connected to the vehicle compartment wall (2) via a second fastener (62), and the third connecting portion (53) is connected to the slide rail frame (4) via a third fastener (63); The first fastener (61) is arranged in the vertical direction, and the second fastener (62) and the third fastener (63) are arranged in the horizontal direction.

2. The trunk lid mounting system according to claim 1, characterized in that: The lateral frame (1) comprises a horizontal crimping portion (11), a vertical fixing portion (12) and a positioning portion (13) arranged from outside to inside; The horizontal crimping portion (11) rests against the upper end surface (21) of the carriage wall; The vertical fixing portion (12) is attached to the inner side surface (22) of the carriage wall; The positioning portion (13) has a positioning groove (131), and the connecting plate (5) has a positioning rib (54), and the positioning rib (54) is inserted into the positioning groove (131).

3. The mounting system for a trunk lid according to claim 2, characterized in that: The first connecting portion (51) is provided with a first through hole (511), the vertical fixing portion (12) is provided with a first fixing hole (121), and the first fastener (61) passes through the first through hole (511) and then extends into the first fixing hole (121); The second connecting portion (52) is provided with a second through hole (521), the inner side surface (22) of the compartment wall is provided with a second fixing hole (221), and the second fastener (62) passes through the second through hole (521) and then extends into the second fixing hole (221); The slide rail frame (4) is provided with a third through hole (41), the third connecting portion (53) is provided with a third fixing hole (531), and the third fastener (63) passes through the third through hole (41) and then extends into the third fixing hole (531); An expansion sleeve (64) is provided in the first fixing hole (121), and the first fastener (61) extends into the expansion sleeve (64) so ​​that the expansion sleeve (64) abuts against the inner wall of the first fixing hole (121).

4. The mounting system for a trunk lid according to claim 3, characterized in that: The connecting plate (5) further comprises a supporting portion (55), the supporting portion (55) being located at the lower end of the lateral frame (1), and the supporting portion (55) having a fourth through hole (551), and the first fastener (61) successively passes through the first through hole (511) and the fourth through hole (551) and then enters into the first fixing hole (121).

5. The mounting system for a trunk lid according to claim 4, characterized in that: The expansion sleeve (64) has a circle of flange (641), the flange (641) is located outside the first fixing hole (121), and the upper end surface of the flange (641) abuts against the lower end surface of the vertical fixing part (12), and the lower end surface of the flange (641) abuts against the upper end surface of the support part (55).

6. The trunk lid mounting system according to claim 1, characterized in that: The second connection part (52) and the third connection part (53) are both distributed vertically, and a first horizontal transition part (523) is provided between the second connection part (52) and the third connection part (53), so that the vertical positions of the second connection part (52) and the third connection part (53) are staggered.

7. The mounting system for a trunk lid according to claim 6, characterized in that: The second connection portion (52) is located outside the third connection portion (53), so that the inner side of the second connection portion (52) forms an inner space (523a), and the outer side of the third connection portion (53) forms an outer space (523b); The head of the second fastener (62) is located in the inner space (523a); The tail portion of the third fastener (63) is located in the outer space (523b).

8. The trunk lid mounting system according to claim 6, characterized in that: A second horizontal transition portion (512) is provided between the first connection portion (51) and the second connection portion (52), so that the vertical positions of the first connection portion (51) and the second connection portion (52) are staggered, and the length of the second horizontal transition portion (512) is greater than the length of the first horizontal transition portion (523).

9. The mounting system for a trunk lid according to claim 2, characterized in that: The lateral frame (1) further comprises a drainage portion (14), wherein the drainage portion (14) is located on the inner side of the positioning portion (13); The upper end surface of the drainage portion (14) has a water guide groove (141), and the end of the drainage portion (14) has a water discharge hole (142), and the water discharge hole (142) is connected to the water guide groove (141); The lower end of the drainage portion (14) is provided with a cover (3) connecting portion (15), and the cover (3) connecting portion (15) is detachably connected with the cover (3) via an external clamp (7).

10. The mounting system for a trunk lid according to claim 9, characterized in that: The drainage portion (14) is provided with a raised sealing portion (16), the sealing portion (16) is located on the inner side of the water guide groove (141), and a first sealing strip (9) is embedded in the sealing portion (16).

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